L. Frank Baum (born May 15, 1856) U.S. novelist, playwright – The Wonderful Wizard of Oz
Katherine Anne Porter (born May 15, 1890) U.S. novelist, short story writer, essayist – The Ship of Fools (1962)
Jakucho Setouchi (born May 15, 1922) Buddhist nun, writer, activist
Read more about Jakucho Setouchi
Jakucho Setouchi gives a talk in Japanese "Spring is Sure to Come":